From owner-freebsd-usb@FreeBSD.ORG  Mon Sep 21 20:10:02 2009
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E8FBE1065679
	for <freebsd-usb@freebsd.org>; Mon, 21 Sep 2009 20:10:02 +0000 (UTC)
	(envelope-from pldrouin@pldrouin.net)
Received: from smtp.cyberfingers.net (smtp.cyberfingers.net [198.177.254.227])
	by mx1.freebsd.org (Postfix) with ESMTP id C081E8FC20
	for <freebsd-usb@freebsd.org>; Mon, 21 Sep 2009 20:10:02 +0000 (UTC)
Received: from mdaemon.pldrouin.net (pldrouinlap2-pc.physics.carleton.ca
	[134.117.23.34])
	by smtp.cyberfingers.net (Postfix) with ESMTP id 811A8AB6C24;
	Mon, 21 Sep 2009 16:07:12 -0400 (EDT)
Message-ID: <4AB7DD9B.8070707@pldrouin.net>
Date: Mon, 21 Sep 2009 16:10:03 -0400
From: Pierre-Luc Drouin <pldrouin@pldrouin.net>
User-Agent: Thunderbird 2.0.0.23 (X11/20090824)
MIME-Version: 1.0
To: Ed Schouten <ed@80386.nl>
References: <4AB6DA79.7050209@pldrouin.net>
	<200909211827.53014.hselasky@c2i.net>
	<20090921194933.GB95398@hoeg.nl> <4AB7DA4B.8050105@pldrouin.net>
	<20090921195920.GE95398@hoeg.nl>
In-Reply-To: <20090921195920.GE95398@hoeg.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-usb@freebsd.org
Subject: Re: usb/138659: uftdi driver broken in RELENG_8/CURRENT
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 21 Sep 2009 20:10:03 -0000

Ed Schouten wrote:
> Hello Pierre-Luc,
>
> * Pierre-Luc Drouin <pldrouin@pldrouin.net> wrote:
>   
>> Here is what I get from pstat when I run my executable:
>>
>> while ( 1 )
>> while? pstat -t ttyU0 | grep ttyU0
>> while? sleep 1
>> while? end
>>      LINE   INQ  CAN  LIN  LOW  OUTQ  USE  LOW   COL  SESS  PGID STATE
>>     ttyU0     0    0    0    0     0    0    0     4     0     0 ICl
>>     
> <snip>
>   
>>     ttyU0  1920    0    0  192  1984    0  199     6     0     0 ICOil
>>     
>
> That all makes sense. Just let me know what it looks like when things go
> sour. If it still displays the above mentioned lines, then I suspect it
> to be a more complex problem...
>
>   
Well in my case (not to be confused with the starter of this thread), I 
simply cannot read any data. It hangs forever at the first read 
statement on FreeBSD in synchronous mode, or I get EINTR if I try 
reading in ASYNC mode after SIGIO is sent, independently of the number 
of bytes I try reading. All these tests run smoothly on Linux.

Pierre-Luc Drouin